Table 2.
Comparisons of clinical factors of the patients who underwent LRH who were classified as having an intermediate or low risk of massive intraoperative blood loss in accordance with the Iwate difficulty scoring system.
| Intermediate (Difficulty index 4 or more) | Low (Difficulty index less than 4) | P | |
|---|---|---|---|
| n = 15 | n = 25 | ||
| Age (years)# | 68 (46–84) | 65 (25–83) | 0.761 |
| Gender (male/female) | 11/4 | 15/10 | 0.502 |
| ASA-PS (3) | 1 (6.7) | 3 (12.0) | 1.000 |
| Tumour type (HCC/metastatic tumour) | 7/8 | 12/13 | 1.000 |
| Type of approach to the previous hepatectomy (Lap-Hx) | 7 (46.7) | 7 (28.0) | 0.310 |
| Number of the previous hepatectomy (3 or more) | 4 (26.7) | 2 (8.0) | 0.174 |
| Pringle manoeuvre (performed) | 8 (53.3) | 9 (36.0) | 0.336 |
| Time of Pringle manoeuvre (minutes)# | 0 (0–133) | 0 (0–108) | 0.720 |
| Year of surgery (2015–2018) | 14 (93.3) | 14 (56.0) | 0.015 |
| Tumour diameter (mm) # | 20 (7–38) | 15 (4–40) | 0.041 |
| Tumour number (multiple) | 3 (20.0) | 2 (8.0) | 0.345 |
| Tumour location (S1, S7 or S8) | 12 (80.0) | 0 | <0.001 |
| Tumours located in the ipsilateral of the previous surgical site | 12 (80.0) | 7 (28.0) | 0.003 |
| Tumours located in the adjacent area on the cranial or dorsal side of the previous surgical site | 11 (73.3) | 3 (12.0) | <0.001 |
| Intraoperative blood loss (mL)# | 125 (small amount-3,260) | 50 (small amount-784) | 0.046 |
| Operation time (minutes)# | 218 (83–368) | 174 (72–355) | 0.083 |
| Converted to laparotomy | 3 (20.0) | 1 (4.0) | 0.139 |
| Morbidity ≥ Clavien-Dindo grade 3a | 1 (6.7) | 0 | 0.375 |
| Postoperative hospital stay (days) | 6 (5–41) | 5 (4–17) | 0.016 |
LRH, laparoscopic repeat hepatectomy; ASA-PS, American Society of Anesthesiologists physical status; HCC, hepatocellular carcinoma; Lap-Hx, laparoscopic hepatectomy; S, segment.
Values in parentheses are percentages unless indicated otherwise#.value is expressed as the median (range).